Hdr informix

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  • Publicado : 12 de octubre de 2010
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Problem | |
|This article describe how to create dbspaces and add chunks to a High-availability data replication (HDR) pair |
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|Solution|
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|INTRODUCTION |
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|High-availability data replication (HDR) provides synchronous and asynchronous data replication of an entire database. It is a|
|successful implementation if you require a hot standby. |
| ||When you configure a pair of database servers to use HDR, one database server is called the primary database server, and the |
|other is called the secondary database server. The secondary server is an exact copy of the primary server. During normal |
|operation, you can connect to the primary database server and use it as you would an ordinary database server. You can also ||use the secondary database server during normal operation, but only to read data. A secondary server does not allow updates |
|from client applications. |
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|Ifafter you set the HDR environment, the primary database server needs additional disk space to store data then it is |
|necessary to create additional dbspaces or add more chunks to the existing dbspaces, and/or chunks have to be added to both |
|database servers (primary and secondary) in order to maintain both servers with the same configuration. |
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|STEPS |
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|Use the following steps to create a new dbspaces or add more chunks to an existent dbspace existent: |
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|1. Prepareraw/cooked spaces and chunks on both machines: |
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|Allocating cooked file space |
|Command|
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|UNIX® and Linux |
| touch filename or...
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